It's set up as dual coil so your resistance will drop in half. Unhook one of the
coils and run it as a single and see what you get. You're gonna need two
coils at 4 ohms each to get it to run at 2 ohms. Looks like a lot of
coils, must be big wire, what gauge is it? I'd try some 34 or 36g to get more resistance with less wraps. Also one or both coils could be shorting somewhere on the wick lowering the resistance. First thing I'd do is check the resistance of each one by itself.